Developed based on landmark research conducted at Stanford University, EEVA® (early embryo viability assessment) our assessment tool was recognized by TIME magazine as one of the top ten medical breakthroughs in 2010.

EEVA is the only non-invasive assessment tool that can provide objective, early information about the developmental potential of your embryos. This process eliminates the need for multi-embryo transfers during in vitro fertilization (IVF), which means more single child pregnancies and less risk for mothers.

Different from genetic screening based on embryo biopsy, EEVA uses a non-invasive, time-lapse imaging process to assess the viability of your embryos. By monitoring embryos during undisturbed incubation, EEVA can detect critical and subtle differences in cell division. With this information, doctors and patients will be able to make smarter decisions about the IVF process.

Of the many factors that contribute to successful IVF, one of the most important and most challenging is selecting which embryo or embryos to transfer. With EEVA, patients and doctors can have the confidence of knowing that they’ve made the right choice.


Our technology, EEVA® (early embryo viability assessment) tool uses time-lapse video monitoring of embryos during incubation to determine which specimens will have the best chance of success during in vitro fertilization (IVF). A special camera-equipped microscope placed inside the incubator captures video of each of the developing embryos. These time-lapse videos are analyzed by intelligent computer software that assesses the patterns and timing of each cell division and identifies those embryos with a high probability of further development.

Your IVF team uses EEVA together with their own clinical observations to select the best embryos to transfer. Information from EEVA has been shown to increase the ability of embryologists to accurately identify embryos with the highest developmental potential. Traditionally, embryologists select embryos based on “morphology grading”, in which they view embryos under a microscope once or twice a day during the first few days of development and assess their visual appearance. These snapshot observations are subjective and based on the experience and ability of the embryologist.

In a clinical study, five embryologists from five different clinics with varying levels of experience analyzed more than 700 embryos using two methods:

  • 1. Traditional methods alone ("morphology grading"): observation of embryos under a microscope to assess visual appearance, such as the number, symmetry and appearance of cells.
  • 2. Traditional methods together with EEVA.

The participating embryologists increased their ability to accurately predict embryo development potential by an average of 53% over traditional methods when using EEVA together with their traditional methods of selection.


Pricing for EEVA is set by each individual clinic. Due to the novel nature of this technology, we do not expect insurance plans will cover EEVA at the moment. We encourage you to consult with your IVF clinic team regarding financial cost of the test and any forms you may need to submit claims to your insurance company. EEVA is available as part of our bundled fertility benefits package. For more information about adding EEVA to your IVF treatment, speak with one of our patient care advocates.